We're in the middle of monsoon season here, which means the humidity is high. It doesn't necessarily mean rain. Still it's better indoors than out, and so I have been in the kitchen quite a bit. This bubbling and sweet smelling pastime made 6 jars of blueberry jam. It's fruit, half the amount of sugar and some lemon rind and juice. Pure goodness. It gelled well without the use of pectin. The lemon does the work.